Refillable fuse.



C. N. STOUT.

RBPILLABLE FUSE.

APPLIOATION FILED JAN.1Q 1914.

1 1 07,861. Patented Aug. 18, 1914.4

inmates N. sTcUT,

oFfHAMiLToN, ONTARIO, CANADA, AssiGNon or ONE-HALF To GEQBGE MORRIS, 'oFHAMILTON, CANADA; i

` .REFiLLAnLE-TUSE."

` signification' 6i Letters'rafeiit; "Pat'entedAug, 18, 191iTollfwhomit'mag/ co'ncmjm"4 g B e it.y known that'l, CHARLES VNiiiisorrSfroUT, a citizen ofjtheUnited States of.

America, residing at 40 Ruthstree't, inthe city ,of Hamilton, worth, inthe Province of Ontario', Dominion of Canada., have invented certainnewy and useful Improvements in Refillable Fuses', of which thefollowing is' al specification.

This invention" relates to" refillable fuses and it has more particularreference to elec--` trical cartridge fuses for u'sewith' currents ofhigh or low power.

` The main object of myinventionisto'vpiokvide a refillable cartridgefuse which-canlbe, recharged expeditiously and further may be usedindefinitely no matter how many times the fuse blows out. x

- Another object of my invention is to provide arefillable fuse whichpermits the removal of the blown out fuse, and the insertionand fixturein proper position yof a new one without disconnecting any part or partsf of the fuse body.

Still another object of my invention is a fuse distinguished inthat thematerial used A for charging same can bel uickly emptied l tubes'l, and2,

Aisis out without fearof loss, an easily filled in again when the newfuse has been fixed in position.

With these and vother objects iii view,

invention consists essentially in the combined' features set forth .inthe following specification, and shown yin the accompanying'tdrawings. teferring to saidv drawings, Figure 1,'i's a longitudinal exteriorview'of a cartridge fuse embodying my improvements; and

2, is a longitudinal axialA sectiontaken` at'- right angles to Fig.`1.

\ In the drawings and according to invention the body iprtion orcartridgeem4-- e 1, and an .out/ergoou*v bodies an inner tu y centricclosely fitting, tube. 2, of less` for the purpose hereafter explained;These 3, 3, are end ca p p over the ends of t e inner tube 1, and theyare of a length to abut snugly against `the ends of the outer tube 2, aswill be apparent on an inspection of thedrawings. v

4, 4, are the so-called knife blades or con' tactmembers andtheyarefixed to the cappieces 3, 3,.by being passed through slots outertube2, irmlyinjone ha are `preferably made .of Asuitable non-conductingmaterial; ,-pieces which tti'ghtl'y vcartri e, held inv l positionfirmly in place by' the replacement of the e Appiication ined-January1e, 1ai1i. .senai no. 313,068.

thereiirand then securely brazedruor, they may be .formed integraltherewithl Longitudinally and centrally at right angles thereto of theblades 4, 4,-and axially in line with one 'another-I form or attach byvsoldering, brazing or! otherwise internally threaded bosses or tubularvoi'sets 5, 5, which .extend diainetrcally` acrossthe inner endsof--lth'e tube 1. .These offsets serve toreceive set-screws 6, 6, whichAfirmly/and rigidly secure the 'blades 4, 4, "cap-pieees, and inner tubel', infirm yconnection as welles .retaining 'the said blades 4, 4, inlongitudina'lly :Gentered'position.4 'lhus it will be seen .that theblades 4, 4, cannot ypossibly vget out of line and that they are rigidlyhetd on the same. plane as the removable fuse element 7.,

that is' made of any'appropriate alloy in the well known way.

8, 8,- are ordinary washers, andl 9, .9, the

-usual clamping or terminal screws,4 for holding the removable fuse 7,iirmlyA iii position. 10, 10, 11, 11, are longitudinal slots or openingsin both the inner and outer tubes 1, 2, respectively, said-'slots' beingslightly enlarged at their ends, as clearly'shown -in Mg. l n

It is to be particularly remarked that the outer tube 2, is adapted tobe rotated on the inner tube 1, to bring the slots 10,' 10, 11, 11, intoregister as shown clearly in Fig, -1. Further it will be seen that byrotating said louter .tube 2,- in either direction onfthe 1nn'ertuberl', rthe aforesaid' slots easily vmoved outijcfregisterjandfconstitute `a closed cartridge. I, i Iii use "andiissuiningfthe{reiner/ablen fuse .7, blows out,all,;thut'jis`1eoessaryis to disconnect the 'its hciisindg rasp the 'enturn one of the ca' piecesiwitlithe ether-hand until the ho es "10, 10"brought iletb'xreasily emp-u 'tied out lay-turni over and intoregister'. Thegllm 'shaking itLL-'S'The terminal sdrews 9, 9, and

ceV

gshers.8,'8, are rein ved andthe blown out throii h the slots 10,-10,at" one end of the and 'secured washers .8, 8, and terminal screws9, `9:The

filling is `returned and thefslts10,11,turnedout'of register, when ,thecartridge is ready foruse adain..

that'by my invention I produce a'fuse the removable fusible elementwhereof canwhen blown out--be removed by the simplest and mostexpeditious of operations necessitating only the removal and replacementof two screws and two washers', Furtheithe'llling is in no way wasted ordamave;

DI wish it clearly understood that I'do not limit myself to the exactshape or details shown and descrbed,'alterations and changes thereinbeing possible without in any way departing from the essence of theinvention and as ,may r asonably be construed as falling within t e-ambit of the claim appended hereto; f f

Having thus described my invention,what I claim as new, and desire tosecure by Lets ters Patent, is: 1

' InA combination. in a reillable fuse, an inner tube offinsulatingmaterial' having longitudinall Ialining slots provided with enlarged enportions, van outerv similarlyslottedjcartridge of shorter. length ttingand against the ends 4ofthe outer tube, a diametrically, arranged bladefitted through each said .cup-shaped piece and disposed in a planeaxiallylongitudinally of the cartridges,l internally threadedprojections on the inner ends of said blades axially in line and atright angles diametrically across the inner, tube adjacent its ends,means for rigidly-clamping said'threaded projections to the inner tubeand e'nd pieces,a fusible element and screws forl securingfsaid fusibleelement tothe innery ends of the aforesaid blades, the heads of saidscrews underlynf the enlarged end portions of the slots. I igned atHamilton, county of Wentworth, Province of Ontario, Canada, this 10thday of; January, A. D. 1914:.

v CHARLES N. STOUT. lIn the presence of- ALFRED Y, BRA'r'ioN,

Gnarls NionorsoN.

Copies of 'this patent :nay be obtained for five cents each, "nyaddressing the Commissioner of Tatents,

' 'i n Washington,1).0.

